Oxygen conserving regulator



FIG. 1 is a perspective of an oxygen conserving regulator of the present invention;

FIG. 2 is a front elevation of the oxygen conserving regulator;

FIG. 3 is a rear elevation of the oxygen conserving regulator;

FIG. 4 is a right side elevation of the oxygen conserving regulator;

FIG. 5 is a left side elevation of the oxygen conserving regulator;

FIG. 6 is a top plan of the oxygen conserving regulator; and,

FIG. 7 is a bottom plan of the oxygen conserving regulator. 

The ornamental design for an oxygen conserving regulator, as shown and described. 